Being a wife before the ring..

Okay so I think I’ve unconsciously sabotaged myself. I met my boyfriend 2 years ago, and things moved pretty fast between us. Within 2 months of our relationship I had already “moved in” & within 5 I was pregnant with our now 8 month old. My boyfriend turned out to be the most loving, providing man I could ask for & he provided a level of stability I had always craved, which is probably why I jumped in head first. Anyway, he’s beginning to mention that our son needs a sibling, but has not talked much about an engagement. We’ve already had a conversation regarding this, and I explained that I’d like to be married before I pop out another child. I want to be able to be out in public with my children alone & people know I have a partner along side of me, you know. He said he knows we’ll marry, but isn’t sure when. So now I’m kind of lost because although I want more children I don’t want to budge on the whole marriage thing. I feel like I fucked up by moving so fast & acting like a wife before getting the title. Has anyone gone through this before? If you have, did you have to pull back a little before he actually proposed??